Types of Hearing Loss |
||
| Conductive | Cochlear functions correctly, but something is blocking the sound from getting there | |
| Mixed | Loss is part conductive, part sensorineural | |
| Sensorineural | Cochlea is not functioning correctly | |
Microtia/Atresia |
||
| Aural Atresia | Missing ear canal | |
| BMA | Bilateral Microtia and Atresia (i.e. both sides) | |
| Canal Stenosis | Incomplete atresia, narrow ear canal | |
| LMA | Left microtia and atresia (ie. unilateral on left side) | |
| Microtia | Missing or deformed outer ear | |
| RMA | Right microtia and atresia (ie. unilateral on right side) | |
| Stapes Fixation / Malformation | Congenital malformation or fusion of the stapes (one of the three bones of the middle ear) | |
| UMA | Unilateral microtia and atresia | |
Medical Tests |
||
| ABR | Auditory Brainstem Response (same as BAER) | |
| Audiogram | Hearing Test | |
| BAER | Brainstem Auditory Evoked Response (same as ABR) | |
| CT Scan | Computerized Tomography Scan | |
| HINT | Hearing In Noise Test | |
| NBHS | Newborn Hearing Screening | |
| MRI | Magnetic Resonance Imaging | |
| Tympanogram | Test of pressure on ear drum | |
Audiogram Abbreviations |
||
| AC | Air Conduction | |
| BC | Bone Conduction | |
| CNT | Could Not Test | |
| Cookie Bite | A loss that is exclusively (or worse) in the speech frequencies, the audiogram picture looks like a cookie with a bite taken out of it, hence the ter, | |
| dB | Decibel, measure of hearing (logorythmic) | |
| DNT | Did Not Test | |
| Hz | Herz, a measurement of the frequency of the sound being tested | |
| KHz | Kilo Herz 4000 Hz == 4KHz | |
| Mild Hearing Loss | 21-40 dB in children, 26-40 dB in adults | |
| Moderate Hearing loss | 41-60 dB | |
| Normal Hearing | anything under 20 dB in children, 25 dB in adults | |
| Profound Hearing Loss | 81 dB or higher | |
| PTA | Pure Tone Average, the average of the 3 speech frequencies where the person reliably responds to tones | |
| Severe Hearing Loss | 61-80 dB | |
| SLT | Speech Language Threshhold | |
| SNHL | Sensineural Hearing Loss | |
| Speech Frequencies | 1K to 4K Hz | |
| SRT | Speech Reception Threshhold (SLT and SRT are pretty much interchangeable) | |
| WNL | Within Normal Limits | |
Devices |
||
| BAHA | Bone Anchored Hearing Appliance | |
| BCHA | Bone Conduction Hearing Aid | |
| HA | Hearing Aid | |
| FM System | Uses FM radio signal to send sound from person wearing microphone directly to hearing impaired individual | |
| Sound Field System | Like FM, but uses “boom box” or amplifiers rather than headphones or hearing aids | |
Surgeries |
||
| Atresia Repair | Creation of an ear canal | |
| Medpor Microtia Repair | Creation of an outer ear using a piece of high tech plastic | |
| PORP | Partial Ossicular Replacement Prosthesis | |
| Rib Graft Microtia Repair | Creation of an outer ear using a rib | |
| Stapedotomy | Removal of stapes bone | |
| TORP | Total Ossicular Replacement Prosthesis | |
| Tympanostomy | ear “tubes” (sometimes called PE [Pressure Equalization] tubes) | |
| VORP | Vibrating Ossicular Replacement Prosthesis | |
